October weather forecast
Lyons, SD

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Weather in October

October, the same as September, in Lyons, South Dakota, is another mild autumn month, with an average temperature fluctuating between 41.2°F (5.1°C) and 57.2°F (14°C).

Temperature

Lyons's October weather is marked by a distinct drop in high-temperatures, declining from a moderately hot 74.3°F (23.5°C) in September to a refreshing 57.2°F (14°C). Lyons registers a consistent average low-temperature of 41.2°F (5.1°C) during October.

Humidity

The least humid month is October, with an average relative humidity of 67%.

Rainfall

In Lyons, South Dakota, during October, the rain falls for 8.5 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Lyons, during the entire year, the rain falls for 118.3 days and collects up to 22.76" (578mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.51" (13mm) of snow. In Lyons, during the entire year, snow falls for 45.4 days and aggregates up to 19.33" (491mm) of snow.

Daylight

In Lyons, South Dakota, the average length of the day in October is 10h and 59min.
On the first day of October, sunrise is at 7:25 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 6:19 pm CDT.

Sunshine

The average sunshine in October in Lyons is 6.1h.

UV index

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In October, an average UV index of 3 transforms into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Lyons in October?

Lyons in October has an average high-temperature of 57.2°F (14°C) and an average low-temperature of 41.2°F (5.1°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 86°F (30°C).

What is the least humid month in Lyons?

October is the least humid month, with an average relative humidity of 67%.

What is the average humidity in October in Lyons?

In October, the average relative humidity is 67%.

How many days does it rain in October in Lyons?

In October, in Lyons, the rain falls for 8.5 days. Throughout October, 1.77" (45mm) of precipitation is accumulated.

When does it start snowing in Lyons?

October is the first month it typically snows in Lyons. Throughout October, in the average 1.6 snowfall days, it receives 0.51" (13mm) of snow.

How many hours of daylight does Lyons have in October?

In Lyons, South Dakota, the average day length in October is 10h and 59min.

When is the sunrise / sunset in October in Lyons?

In October, on the first day of the month, sunrise is at 7:25 am and sunset at 7:07 pm. On the last day of the month, in Lyons, South Dakota, sunrise is at 8:03 am and sunset at 6:19 pm CDT.

How many hours of sunshine does Lyons have in October?

The average sunshine duration in October is 6.1h.

What is the UV index reading in October in Lyons?

In October, the average daily maximum UV index in Lyons, South Dakota, is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Lyons, SD

Average temperature in October - Lyons, SD
  • Average high temperature in October: 57.2°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in October: 41.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average pressure in October
Lyons, SD

Average pressure in October - Lyons, SD
  • Average pressure in October: 29.99"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in October
Lyons, SD

Average wind speed in October - Lyons, SD
  • Average wind speed in October: 10.7mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in October
Lyons, SD

Average humidity in October - Lyons, SD
  • Average humidity in October: 67%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).

Average rainfall in October
Lyons, SD

Average rainfall in October - Lyons, SD
  • Average rainfall in October: 1.77"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is February (0.63").

Average rainfall days in October
Lyons, SD

Average rainfall days in October - Lyons, SD
  • Average rainfall days in October: 8.5 days

The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in October
Lyons, SD

Average snowfall in October - Lyons, SD
  • Average snowfall in October: 0.51"

The month with the highest snowfall is December (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Lyons, SD

Average snowfall days in October - Lyons, SD
  • Average snowfall days in October: 1.6 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Lyons, SD

Average daylight in October / Average sunshine in October - Lyons, SD
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in October: 6h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in October
Lyons, SD

Average sunshine days in October - Lyons, SD
  • Average sunshine days in October: 19.5 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in October
Lyons, SD

Average UV index in October - Lyons, SD
  • Average UV index in October: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in October
Lyons, SD

Average cloud cover in October - Lyons, SD
  • Average cloud cover in October: 35

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in October
Lyons, SD

Average visibility in October - Lyons, SD
  • Average visibility in October: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Lyons, South Dakota, USA

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